Promega Gravity Leveling Bracket

thingiverse

This is a bracket designed to make leveling the M3d Promega bed to its frame easy. Since the bracket is extruded from the middle, they are reversible for use one ether side. First print four of these. Then move the bed near the top with a G1 Z20 command before you install the brackets. Screw each of them into the free upper side holes (below the bed) with 8/32 screws, which thread nicely into those holes. Turn off printer and allow the corners to rest on each bracket. Then loosen all bottom belt locks, snug and tighten each one. This can be done by putting the machine feet to the edge of the table it is on, which gives you access to 3 of the corners at once. Then, either rotate or slide the printer to access the fourth. Now raise the bed slightly manually lifting from the sides and allow it to drop, making sure each corner touches together. Re-tighten if necessary. Remove the brackets before turning the machine back on and you should be level (if you trust the frame, that is.) I've included the Fusion 360 file so you can change particulars. With the current settings, there is no wiggle on my machine, but adjust the DEFTolerance value if yours is too snug or loose.